NetBuddy IP Subnet Calculator

Whether you're a network engineer, IT professional, student, or networking enthusiast, NetBuddy is your essential companion for subnet calculations, network planning, and learning. This powerful yet intuitive app combines professional-grade tools with educational features to help you master networking concepts.

IPv4 & IPv6 SUBNET CALCULATORS

• Calculate network details instantly with support for both IPv4 and IPv6
• View Network ID, Broadcast Address, and usable host ranges
• Display subnet masks, wildcard masks, and CIDR notation
• Toggle between decimal and binary formats
• Detect your device's current IP configuration
• Smart CIDR range suggestions based on IP address classes
• Save frequently used subnet configurations with custom labels

INTERACTIVE QUIZ GAMES

Test and improve your networking knowledge with engaging quiz games:
• IPv4 Quiz: Master subnetting calculations, host counts, and network addresses
• IPv6 Quiz: Practice address types, compression, expansion, and prefix lengths
• 10 random questions per game with immediate feedback
• Track your scores and identify areas for improvement
• Perfect for certification prep (CCNA, Network+, etc.)

VLAN MANAGEMENT

• Create and manage VLANs (1-4094)
• Organize VLANs with custom names and descriptions
• View reserved VLAN information
• Save VLAN configurations for quick reference
• Export and import VLAN data

MAC ADDRESS LOOKUP

• Identify device manufacturers from MAC addresses
• Support for multiple MAC address formats (colon, dash, dot notation)
• Automatically detect your device's MAC address
• Fast OUI database lookup

PORT REFERENCE GUIDE

• Quick reference for common network ports
• Search by port number or service name
• View protocol information (TCP/UDP)
• Learn what each port is used for
• Covers well-known, registered, and dynamic port ranges

CLOUD SYNC WITH SOLID POD

• Sync your saved subnets across all your devices
• Privacy-focused: you own your data in your personal Solid Pod
• Automatic conflict resolution when editing on multiple devices
• Works with Inrupt PodSpaces and other Solid providers
• Optional - use the app fully offline if preferred

COMPREHENSIVE HELP SECTION

• Step-by-step guides for every feature
• Networking concepts explained clearly
• Tips and best practices
• Troubleshooting assistance
• Perfect for learning and reference

DESIGNED FOR PROFESSIONALS & STUDENTS

NetBuddy is perfect for:
• Network Engineers planning and documenting networks
• IT Professionals troubleshooting connectivity issues
• Students studying for networking certifications
• Educators teaching networking concepts
• Anyone learning about IP addressing and subnetting

KEY HIGHLIGHTS

-Clean, intuitive interface with dark mode support
-No ads or subscriptions - pay once, use forever
-Works completely offline (except cloud sync)
-Regular updates with new features
-Built with privacy in mind
-Supports both iPhone and iPad

WHAT'S NEW IN VERSION 1.3

• Added interactive IPv6 quiz game
• New comprehensive Help section
• Enhanced dark mode support throughout the app
• Improved Solid Pod conflict resolution
• Bug fixes and performance improvements

Transform the way you work with networks. Download NetBuddy today and take your networking skills to the next level!